Improvement of Shock Noise Insulation by Elastic Gaskets in Floating Floor Structures

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Abstract

A comfortable acoustic environment in residential and public buildings is an important task that can be solved only in a complex of special constructive measures, one of which is to improve the sound insulation of enclosing structures, including floor-to-floor ceilings. The article presents the results of laboratory tests of building materials used as elastic gaskets when installing floating floors. The compositions of floating floors are described, graphs of the frequency dependence of the improvement of shock noise insulation by tested structures, as well as their single-digit characteristics are given.

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About the authors

O. V. Gradova

Scientific-Research Institute of Building Physics of RAACS

Author for correspondence.
Email: zpu2007@yandex.ru

Head of Sector No. 42.1 “Acoustic materials and structures” 

Russian Federation, Moscow

A. M. Rogalev

Scientific-Research Institute of Building Physics of RAACS

Email: amrogalev@yandex.ru

Leading Engineer 

Russian Federation, Moscow

References

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Supplementary files

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2. Fig. 1. Tested designs by type of elastic pads

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3. Fig. 2. Low SPL chamber

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4. Fig. 3. One of the positions of the impact machine

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5. Fig. 4. Frequency characteristics of improving impact noise insulation of floating floor structures with an elastic layer: a – from mineral wool slabs; b – from foamed polyethylenes and other polyolefins; c – mats made of needle-punched fiberglass

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6. Fig. 5. Frequency characteristics of average impact noise insulation improvement values of the most common materials used as elastic gaskets

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